fix(welcome): extract wizard components to Razor Class Library so bUnit tests don't load WindowsAppSDK (fixes CI DllNotFound on clean runner)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

windows/welcome/SilverOS.Welcome.sln

@@ -11,6 +11,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SilverOS.Welcome.Tests", "t
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SilverOS.Welcome.App", "src\SilverOS.Welcome.App\SilverOS.Welcome.App.csproj", "{E62F6F39-C734-436E-9193-78D313205A02}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SilverOS.Welcome.UI", "src\SilverOS.Welcome.UI\SilverOS.Welcome.UI.csproj", "{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -57,6 +59,18 @@ Global
 		{E62F6F39-C734-436E-9193-78D313205A02}.Release|x64.Build.0 = Release|Any CPU
 		{E62F6F39-C734-436E-9193-78D313205A02}.Release|x86.ActiveCfg = Release|Any CPU
 		{E62F6F39-C734-436E-9193-78D313205A02}.Release|x86.Build.0 = Release|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Debug|x64.Build.0 = Debug|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Debug|x86.Build.0 = Debug|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Release|x64.ActiveCfg = Release|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Release|x64.Build.0 = Release|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Release|x86.ActiveCfg = Release|Any CPU
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -65,5 +79,6 @@ Global
 		{939DF856-EB90-473B-9C46-D8504B94A81B} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
 		{73B13415-D01D-4409-B85F-62C8A4A8C95D} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
 		{E62F6F39-C734-436E-9193-78D313205A02} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
+		{BCC7EDC1-3170-4273-820F-6A1204D0BCAB} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
 	EndGlobalSection
 EndGlobal

windows/welcome/src/SilverOS.Welcome.App/MainPage.xaml

@@ -2,7 +2,7 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              xmlns:local="clr-namespace:SilverOS.Welcome.App"
-             xmlns:components="clr-namespace:SilverOS.Welcome.App.Components"
+             xmlns:components="clr-namespace:SilverOS.Welcome.App.Components;assembly=SilverOS.Welcome.UI"
              x:Class="SilverOS.Welcome.App.MainPage">
 
     <BlazorWebView x:Name="blazorWebView" HostPage="wwwroot/index.html">

windows/welcome/src/SilverOS.Welcome.App/SilverOS.Welcome.App.csproj

@@ -53,6 +53,7 @@
 
     <ItemGroup>
       <ProjectReference Include="..\SilverOS.Welcome.Core\SilverOS.Welcome.Core.csproj" />
+      <ProjectReference Include="..\SilverOS.Welcome.UI\SilverOS.Welcome.UI.csproj" />
     </ItemGroup>
 
 </Project>

windows/welcome/src/SilverOS.Welcome.UI/SilverOS.Welcome.UI.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk.Razor">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0-windows</TargetFramework>
+    <RootNamespace>SilverOS.Welcome.App</RootNamespace>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <FrameworkReference Include="Microsoft.AspNetCore.App" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SilverOS.Welcome.Core\SilverOS.Welcome.Core.csproj" />
+  </ItemGroup>
+
+</Project>

windows/welcome/src/SilverOS.Welcome.UI/_Imports.razor

@@ -0,0 +1,13 @@
+@using System.Linq
+@using System.Net.Http
+@using System.Net.Http.Json
+@using Microsoft.AspNetCore.Components.Forms
+@using Microsoft.AspNetCore.Components.Routing
+@using Microsoft.AspNetCore.Components.Web
+@using Microsoft.AspNetCore.Components.Web.Virtualization
+@using Microsoft.JSInterop
+@using SilverOS.Welcome.App
+@using SilverOS.Welcome.App.Components
+@using SilverOS.Welcome.App.Components.Steps
+@using SilverOS.Welcome.Core.Flavours
+@using SilverOS.Welcome.Core.Apply

windows/welcome/tests/SilverOS.Welcome.Tests/SilverOS.Welcome.Tests.csproj

@@ -1,15 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <TargetFramework>net9.0-windows10.0.19041.0</TargetFramework>
+    <TargetFramework>net9.0-windows</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
-    <UseMaui>true</UseMaui>
-    <!-- Suppress MAUI OutputType so the test runner can pick up the dll -->
-    <OutputType>Library</OutputType>
-    <!-- Suppress MAUI implicit-package warnings; we only need the SDK for TFM compatibility -->
-    <SkipValidateMauiImplicitPackageReferences>true</SkipValidateMauiImplicitPackageReferences>
   </PropertyGroup>
 
   <ItemGroup>
@@ -26,7 +21,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\src\SilverOS.Welcome.App\SilverOS.Welcome.App.csproj" />
+    <ProjectReference Include="..\..\src\SilverOS.Welcome.UI\SilverOS.Welcome.UI.csproj" />
+    <ProjectReference Include="..\..\src\SilverOS.Welcome.Core\SilverOS.Welcome.Core.csproj" />
   </ItemGroup>
 
 </Project>